Rain Water Harvesting- Field trip
Some of us may have heard the popular slogan ‘a drop harvested is a crop harvested’. This slogan signifies the importance of rainwater harvesting. To make us understand this concept, our school took us on a study trip to Vishveshvaraya Rainwater Harvesting theme park. When we reached the place, a huge banner of Shri Vishveshvaraya welcomed us. The park consisted of life-size outdoor models of rainwater harvesting, three indoor galleries and an amphitheater.
The outdoor models were based on five different processes of rainwater harvesting – collection, filtration, channelization, storage and recharging groundwater level. Rainwater from the roof of a model house flows down through bamboo ducts. The water passed through a filter to trap the leaves and dirt. The water from different bamboo ducts are channeled into a tank for storage. The water from the tank seeps into the surrounding soil, and thus recharges the groundwater.
The first gallery had a miniature working model of rain water harvesting. There was a diagram which explained how ground water is formed. There were also some exhibits, which gave the students interesting information like, our body contains 55% of water and a sugarcane plant needs 12,000 liters of water for growing.
The second gallery was based on water conservation. There were models of taps, showers and washing machines. Semi-automatic washing machines uses less water when compared to fully-automated ones. Water-resistor taps and showers with filters dispense less water compared to normal ones.
The last gallery was about the history of BWSSB – it is an acronym for Bangalore Water Supply and Sewerage board.
Then the students were ushered into the amphitheater. All were happy to sit down and take a short break. A short film was played. It was about a boy who implemented rainwater harvesting in his area and solved the water shortage problem.
This experiential learning trip enabled students to become thoughtful of living under a ticking time-bomb. The wells around the country are drying up. Rapidly expanding cities are exhausting the groundwater at an alarming rate. The lakes and rivers are already polluted. Deforestation prevents replenishment of ground water. In another few years, water will be the new Gold. That is frightening.